Butler County, PA

ZIP 16066

In ZIP 16066, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Zelienople Boro meets every EPA legal limit; 9 contaminants are above health goals, led by pfoa at 371× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Ati Precision Finishing LLC - Monaca (31%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 61,517 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 16066

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsF
• Parks and nature nearbyB to D
• Air qualityC to D
• Drinking water qualityB to D
• Pesticide useC to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA to D
• Radiation signalsD to F

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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